CN111174677A - High-speed motor test system - Google Patents
High-speed motor test system Download PDFInfo
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- CN111174677A CN111174677A CN201811337740.9A CN201811337740A CN111174677A CN 111174677 A CN111174677 A CN 111174677A CN 201811337740 A CN201811337740 A CN 201811337740A CN 111174677 A CN111174677 A CN 111174677A
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- motor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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Abstract
The invention relates to the technical field of high-speed motor testing, and discloses a high-speed motor testing system. The system comprises a test motor stator, a tested motor stator and a coaxial rotor, wherein the test motor stator and the tested motor stator share the coaxial rotor, the test motor stator and the coaxial rotor form a test motor body, the tested motor stator and the coaxial rotor form a tested motor body, and the test motor body and the tested motor body form a mechanically and directly connected motor butt-dragging structure. Therefore, the defect that the coaxiality is difficult to guarantee due to the fact that the coupler is used for connecting the testing motor and the tested motor in the existing high-speed motor testing system structure can be overcome, the situation that the coupler and even the whole testing system structure are easily damaged in the high-speed testing process is avoided, and the design and installation difficulty of the motor testing system structure is simplified.
Description
Technical Field
The invention relates to the technical field of high-speed motor testing, in particular to a high-speed motor testing system.
Background
The technical difficulty of the high-speed motor test system structure is how to ensure the coaxiality of two motors when the two motors are dragged. The existing test system structure adopts two independent motors, realizes the butt-towing through a coupler, has the defect that the coaxiality of the connection mode is not enough, and when the tested rotating speed of the high-speed motor is very high, if reaching tens of thousands of revolutions per minute, a motor rotor rotating at a high speed easily causes the coupler to lose efficacy and damages the butt-towing structure, thereby causing the test system to be damaged.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a high-speed motor testing system, and can solve the problem of insufficient coaxiality of motors in the conventional high-speed motor testing system.
The technical solution of the invention is as follows: a high-speed motor test system comprises a test motor stator, a tested motor stator and a coaxial rotor, wherein the test motor stator and the tested motor stator share the coaxial rotor, the test motor stator and the coaxial rotor form a test motor body, the tested motor stator and the coaxial rotor form a tested motor body, and the test motor body and the tested motor body form a mechanically directly connected motor counter-dragging structure.
Preferably, the coaxial rotor comprises a test motor rotor magnetic steel, a tested motor rotor magnetic steel and a mechanical shaft, the test motor rotor magnetic steel and the mechanical shaft form a test motor rotor, and the tested motor rotor magnetic steel and the mechanical shaft form a tested motor rotor.
Preferably, the rotor magnetic steel of the tested motor is located at a position on the mechanical shaft corresponding to the stator of the tested motor, and the rotor magnetic steel of the tested motor is located at a position on the mechanical shaft corresponding to the stator of the tested motor.
Preferably, a first air gap is formed between the test motor stator and the coaxial rotor, and a second air gap is formed between the tested motor stator and the coaxial rotor.
Preferably, the width of the first air gap is the same as the width of the second air gap.
Through the technical scheme, the testing motor stator and the tested motor stator can respectively form the testing motor body and the tested motor body by sharing the coaxial rotor, and the testing motor body and the tested motor body can form the mechanically directly-connected motor twin-trailing structure without using a coupler. Therefore, the defect that the coaxiality is difficult to guarantee due to the fact that the coupler is used for connecting the testing motor and the tested motor in the existing high-speed motor testing system structure can be overcome, the situation that the coupler and even the whole testing system structure are easily damaged in the high-speed testing process is avoided, and the design and installation difficulty of the motor testing system structure is simplified.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic axial cross-sectional view of a high-speed motor testing system according to an embodiment of the present invention.
Description of the reference numerals
1 testing a motor stator; 2, testing the magnetic steel of the motor rotor; 3 a first air gap;
4, a stator of the tested motor; 5 rotor magnetic steel of the tested motor; 6 a second air gap;
7 testing the motor body; 8 testing the motor body; 9 mechanical axis.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, for purposes of explanation and not limitation, specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the device structures and/or processing steps that are closely related to the scheme according to the present invention are shown in the drawings, and other details that are not so relevant to the present invention are omitted.
Fig. 1 is a schematic axial cross-sectional view of a high-speed motor testing system according to an embodiment of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a high-speed motor testing system, where the system may include a testing motor stator 1, a tested motor stator 4, and a coaxial rotor, where the testing motor stator 1 and the tested motor stator 4 may share the coaxial rotor, the testing motor stator 1 and the coaxial rotor form a testing motor body 7, the tested motor stator 4 and the coaxial rotor form a tested motor body 8, and the testing motor body 7 and the tested motor body 8 form a mechanically directly connected motor twin-trailing structure.
Through the technical scheme, the testing motor stator and the tested motor stator can respectively form the testing motor body and the tested motor body by sharing the coaxial rotor, and the testing motor body and the tested motor body can form the mechanically directly-connected motor twin-trailing structure without using a coupler. Therefore, the defect that the coaxiality is difficult to guarantee due to the fact that the coupler is used for connecting the testing motor and the tested motor in the existing high-speed motor testing system structure can be overcome, the situation that the coupler and even the whole testing system structure are easily damaged in the high-speed testing process is avoided, and the design and installation difficulty of the motor testing system structure is simplified.
According to an embodiment of the present invention, the coaxial rotor may include a testing motor rotor magnetic steel 2, a tested motor rotor magnetic steel 5, and a mechanical shaft 9, where the testing motor rotor magnetic steel 2 and the mechanical shaft 9 form a testing motor rotor, and the tested motor rotor magnetic steel 5 and the mechanical shaft 9 form a tested motor rotor.
The mechanical shaft can be integrally processed and is shared by the test motor rotor and the test motor rotor.
That is, the test motor rotor and the tested motor rotor share the mechanical shaft, and are not mechanically connected through a coupling, but are directly connected in a mechanical structure.
Therefore, a coupling can be omitted during the connection, so that the coaxiality deviation introduced by the coupling connection is avoided.
According to an embodiment of the invention, the rotor magnetic steel 2 of the tested motor is located at a position on the mechanical shaft 9 corresponding to the stator 1 of the tested motor, and the rotor magnetic steel 5 of the tested motor is located at a position on the mechanical shaft 9 corresponding to the stator 4 of the tested motor.
According to an embodiment of the present invention, the test motor stator 1 and the coaxial rotor have a first air gap (i.e., test motor air gap) 3 therebetween, and the under-test motor stator 4 and the coaxial rotor have a second air gap (i.e., under-test motor air gap) 6 therebetween.
Because the stator 1 of the test motor, the stator 4 of the tested motor and the coaxial rotor respectively have air gaps between the rotors, the air gaps can bear errors in installation of the test motor and the tested motor.
The coaxiality between the motor stator and the coaxial rotor is mainly ensured in the process of mounting and fixing the motor, the mounting process is simple, and the mounting error can be borne by the air gap within the error allowable range, so that the coaxial rotor is ensured not to generate a centrifugal phenomenon during high-speed rotation, and a test structure is not damaged.
That is, after the coaxial rotor of the motor testing system is fixed, the testing system can be assembled by adjusting the coaxiality of the stator and the coaxial rotor, and the introduced coaxiality deviation can be transferred to the air gap in the assembling process (namely, the coaxiality among the stator of the testing motor, the stator of the tested motor and the coaxial rotor is kept within an error range through the air gap).
According to an embodiment of the invention, the width of the first air gap 3 is the same as the width of the second air gap 6.
Features that are described and/or illustrated above with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.
The many features and advantages of these embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of these embodiments which fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
The invention has not been described in detail and is in part known to those of skill in the art.
Claims (5)
1. The high-speed motor test system is characterized by comprising a test motor stator (1), a tested motor stator (4) and a coaxial rotor, wherein the test motor stator (1) and the tested motor stator (4) share the coaxial rotor, the test motor stator (1) and the coaxial rotor form a test motor body (7), the tested motor stator (4) and the coaxial rotor form a tested motor body (8), and the test motor body (7) and the tested motor body (8) form a mechanically directly-connected motor counter-dragging structure.
2. The system according to claim 1, wherein the coaxial rotor comprises a test motor rotor magnetic steel (2), a tested motor rotor magnetic steel (5) and a mechanical shaft (9), the test motor rotor magnetic steel (2) and the mechanical shaft (9) constitute a test motor rotor, and the tested motor rotor magnetic steel (5) and the mechanical shaft (9) constitute a tested motor rotor.
3. The system according to claim 2, characterized in that the test motor rotor magnet steel (2) is located on the mechanical shaft (9) at a position corresponding to the test motor stator (1), and the tested motor rotor magnet steel (5) is located on the mechanical shaft (9) at a position corresponding to the tested motor stator (4).
4. A system according to any of claims 1-3, characterized in that there is a first air gap (3) between the test machine stator (1) and the coaxial rotor, and a second air gap (6) between the tested machine stator (4) and the coaxial rotor.
5. System according to claim 4, characterized in that the width of the first air gap (3) is the same as the width of the second air gap (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811337740.9A CN111174677A (en) | 2018-11-12 | 2018-11-12 | High-speed motor test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811337740.9A CN111174677A (en) | 2018-11-12 | 2018-11-12 | High-speed motor test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111174677A true CN111174677A (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811337740.9A Pending CN111174677A (en) | 2018-11-12 | 2018-11-12 | High-speed motor test system |
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| Country | Link |
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| CN (1) | CN111174677A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135360A (en) * | 2006-08-29 | 2008-03-05 | 通用汽车环球科技运作公司 | Electrically variable transmission with a compound motor/generator |
| CN103997171A (en) * | 2014-05-30 | 2014-08-20 | 广州市昊志机电股份有限公司 | Novel birotor motor |
| CN104777425A (en) * | 2015-03-31 | 2015-07-15 | 浙江大学 | Coaxial high-speed mutual feedback test platform for permanent magnet synchronous motor |
| CN106487123A (en) * | 2015-08-31 | 2017-03-08 | 德昌电机(深圳)有限公司 | Liquid pump and its motor |
-
2018
- 2018-11-12 CN CN201811337740.9A patent/CN111174677A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135360A (en) * | 2006-08-29 | 2008-03-05 | 通用汽车环球科技运作公司 | Electrically variable transmission with a compound motor/generator |
| CN103997171A (en) * | 2014-05-30 | 2014-08-20 | 广州市昊志机电股份有限公司 | Novel birotor motor |
| CN104777425A (en) * | 2015-03-31 | 2015-07-15 | 浙江大学 | Coaxial high-speed mutual feedback test platform for permanent magnet synchronous motor |
| CN106487123A (en) * | 2015-08-31 | 2017-03-08 | 德昌电机(深圳)有限公司 | Liquid pump and its motor |
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Application publication date: 20200519 |